Consider an asteroid approaching Earth. Estimate the distance from the Earth at which Earth's gravity begins...
Consider an asteroid approaching Earth. Estimate the distance from the Earth at which Earth's gravity begins to be as important, or more important, than that of the Sun (neglect the Moon's gravity). Discuss the effect of the Moon.
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Consider an asteroid approaching Earth. Estimate the distance
from the Earth at which Earth's gravity begins...
An asteroid is approaching earth at 1.48 km/s when it is 7500 km from earth's surface....
An asteroid is approaching earth at 1.48 km/s when it is 7500 km from earth's surface. How fast is it moving when it is 3100 km above earth's surface? Give answer in km/s.
The mean distance of an asteroid from the Sun is 4.10 times that of Earth from...
The mean distance of an asteroid from the Sun is 4.10 times that of Earth from the Sun. From Kepler's law of periods, calculate the number of years required for the asteroid to make one revolution about the Sun. yr
Which of the following statements are true? Because the Earth has mass it produces gravity. There...
Which of the following statements are true? Because the Earth has mass it produces gravity. There is no gravity at the space station I need to do work to move a satellite from lower to higher orbit. Because the force of gravity is a conservative force and because it acts as a centripetal force it does no work, the mechanical energy of Earth is conserved and it will not crush into the Sun. Since Moon has no air, there is...
A body weighs 250 16, at the earth's surface. Determine: a) The mass of the body....
A body weighs 250 16, at the earth's surface. Determine: a) The mass of the body. b) The weight of the body on the moon's cu SOLAR SYSTEM MASSES AND DISTANCES m - a Mass: of the earth = 4.095(1023 of the moon = 5.037(1021 . of the sun = 1.364(1029 Means or average radius: of the eartha = 2.090(103) of the moon = 5.702(10) of the sun = 2.284(109) Mean or average distance from the earth: to the moon...
Since Moon is attracted to Earth, why doesn't it fall onto Earth? because it has large...
Since Moon is attracted to Earth, why doesn't it fall onto Earth? because it has large tangential velocity because there is another equal force on the Moon that balances gravity because centrifugal force balances gravity because centrifugal force more than balances gravity because it has too much inertia to fall towards Earth A. Ocean tides occur mainly because water always runs to the low spot water always runs to the side of the Earth away from the Moon B. water...
We know that the Earth moves about the Sun due to the gravity force exerted by...
We know that the Earth moves about the Sun due to the gravity force exerted by the Sun, that is, the Earth is a “satellite” to the Sun, just like the moon to the Earth. Assume the Earth follows uniform circle motion about the Sun, and ignore gravity force due to objects other than the Sun. Estimate the orbital speed of the Earth = _______ m/s? The Earth has mass =5.98 x 1024 kg and radius 6.4 x 106 m....
An Earth satellite is orbiting at a distance from the Earth's surface equal to one Earth...
An Earth satellite is orbiting at a distance from the Earth's surface equal to one Earth radius. At this location, the acceleration due to gravity is what factor times the value of g at the Earth's surface?
Imagine an asteroid starting to move toward the Earth from an infinitely far distance and from...
Imagine an asteroid starting to move toward the Earth from an infinitely far distance and from rest. The speed of the asteroid when it reaches to a distance ? from the center of the Earth is ?1. It will have a speed of ?2 after it travels more and reaches to a distance ?/2from the center of the Earth. What is the ratio of ?2 and ?1? Prove your answer. Hint: Use work-kinetic energy theorem
1) The Solar and Sidereal days difer from each other by about 4 minutes. How much distance, relative to the Sun and...
1) The Solar and Sidereal days difer from each other by about 4 minutes. How much distance, relative to the Sun and in km, does the Earth travel during that time? (You may approximate the Earth's orbit as a perfect circle.) 2) How many degrees does the Moon move in its orbit during one Earth-day. Use the Moon's orbital period relative to distant stars, i.e. use its sidereal period. 3) a) Since the Earth makes one full revolution every 24...
QUESTION 16 The Moon which has mass of about 7.35 1022 kilograms, and it orbits the...
QUESTION 16 The Moon which has mass of about 7.35 1022 kilograms, and it orbits the Earth with an average orbital distance of 384,400 kilometers. Calculate the following for the Moon the magnitude of the average gravitational force exerted by the Earth on the Moon: A. Newtons (use scientific notation and round the coefficient to two decimals) the magnitude of the acceleration due to Earth's gravity at Moon's orbit B. m/s (use scientific notation and round the coefficient to two...
Which of the following statements are true? Because the Earth has mass it produces gravity. There is no gravity at the space station I need to do work to move a satellite from lower to higher orbit. Because the force of gravity is a conservative force and because it acts as a centripetal force it does no work, the mechanical energy of Earth is conserved and it will not crush into the Sun. Since Moon has no air, there is...
A body weighs 250 16, at the earth's surface. Determine: a) The mass of the body. b) The weight of the body on the moon's cu SOLAR SYSTEM MASSES AND DISTANCES m - a Mass: of the earth = 4.095(1023 of the moon = 5.037(1021 . of the sun = 1.364(1029 Means or average radius: of the eartha = 2.090(103) of the moon = 5.702(10) of the sun = 2.284(109) Mean or average distance from the earth: to the moon...
Since Moon is attracted to Earth, why doesn't it fall onto Earth? because it has large tangential velocity because there is another equal force on the Moon that balances gravity because centrifugal force balances gravity because centrifugal force more than balances gravity because it has too much inertia to fall towards Earth A. Ocean tides occur mainly because water always runs to the low spot water always runs to the side of the Earth away from the Moon B. water...
1) The Solar and Sidereal days difer from each other by about 4 minutes. How much distance, relative to the Sun and in km, does the Earth travel during that time? (You may approximate the Earth's orbit as a perfect circle.) 2) How many degrees does the Moon move in its orbit during one Earth-day. Use the Moon's orbital period relative to distant stars, i.e. use its sidereal period. 3) a) Since the Earth makes one full revolution every 24...
QUESTION 16 The Moon which has mass of about 7.35 1022 kilograms, and it orbits the Earth with an average orbital distance of 384,400 kilometers. Calculate the following for the Moon the magnitude of the average gravitational force exerted by the Earth on the Moon: A. Newtons (use scientific notation and round the coefficient to two decimals) the magnitude of the acceleration due to Earth's gravity at Moon's orbit B. m/s (use scientific notation and round the coefficient to two...
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